The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 13, 2022

Filed:

Mar. 15, 2021
Applicant:

Hrl Laboratories, Llc, Malibu, CA (US);

Inventors:

Ryan Quarfoth, Malibu, CA (US);

Carson White, Malibu, CA (US);

Assignee:

HRL LABORATORIES, LLC, Malibu, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/04 (2006.01); H01Q 1/24 (2006.01); H03F 1/02 (2006.01); H03F 3/24 (2006.01); H01Q 9/06 (2006.01); H01Q 13/18 (2006.01);
U.S. Cl.
CPC ...
H04B 1/04 (2013.01); H01Q 1/24 (2013.01); H01Q 9/06 (2013.01); H01Q 13/18 (2013.01);
Abstract

A transmitting circuit. In some embodiment, the transmitting circuit includes a slot antenna and an amplifier. The slot antenna may include a slot in a conductive sheet, and it may have a first resonant frequency, the first resonant frequency being within 20% of a slot frequency which is between a first frequency corresponding, in a first volume, to a wavelength twice the length of the slot, and a second frequency corresponding, in a second volume, to a wavelength twice the length of the slot. The amplifier may be connected to the slot through a connection including a conductive path, between the amplifier and the slot, having a length less than 0.2 times the length of the slot. The magnitude of the output impedance of the amplifier may be less than 0.25 times the magnitude of the impedance of the slot antenna at a first resonant frequency.


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